DE29904231U1 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- DE29904231U1 DE29904231U1 DE29904231U DE29904231U DE29904231U1 DE 29904231 U1 DE29904231 U1 DE 29904231U1 DE 29904231 U DE29904231 U DE 29904231U DE 29904231 U DE29904231 U DE 29904231U DE 29904231 U1 DE29904231 U1 DE 29904231U1
- Authority
- DE
- Germany
- Prior art keywords
- heat exchanger
- inserts
- tubes
- tube
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 1
- 238000009835 boiling Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0015—Guiding means in water channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Details Of Fluid Heaters (AREA)
- Power Steering Mechanism (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Separation By Low-Temperature Treatments (AREA)
Description
Joh. Vaillant GmbH u. Co. GM 1712Joh. Vaillant GmbH u. Co. GM 1712
Die Erfindung bezieht sich auf einen Wärmetauscher gemäß dem Oberbegriff des Anspruches 1.The invention relates to a heat exchanger according to the preamble of claim 1.
Bei bekannten derartigen Wärmetauschern ergibt sich das Problem, daß es aufgrund der relativ schlechten Wärmeleitfähigkeit des Edelstahls zu einer relativ schlechten Wärmeverteilung im Umfang der Rohre kommt. Daraus ergibt sich ein sehr hoher Wärmeeintrag auf das in den Rohren strömende wärmeaufnehmende Medium im Anströmbereich des wärmeabgebenden Mediums. Dies führt auch zur Ausbildung von Siedegeräuschen.The problem with known heat exchangers of this type is that the relatively poor thermal conductivity of stainless steel results in relatively poor heat distribution around the circumference of the pipes. This results in a very high heat input into the heat-absorbing medium flowing in the pipes in the flow area of the heat-emitting medium. This also leads to the formation of boiling noises.
Ziel der Erfindung ist es, diese Nachteile zu vermeiden und einen Wärmetauscher der eingangs erwähnten Art vorzuschlagen, der sich durch einen guten Wärmeübergang von den Rohren zum wärmeaufnehmenden Medium auszeichnet.The aim of the invention is to avoid these disadvantages and to propose a heat exchanger of the type mentioned at the outset, which is characterized by good heat transfer from the tubes to the heat-absorbing medium.
Erfindungsgemäß wird dies bei einem Wärmetauscher der eingangs erwähnten Art durch die kennzeichnenden Merkmale des Anspruches 1 erreicht.According to the invention, this is achieved in a heat exchanger of the type mentioned at the outset by the characterizing features of claim 1.
Durch die vorgeschlagenen Maßnahmen wird eine erhebliche Verbesserung des Wärmeüberganges vom Rohr auf das dieses durchströmende Medium erreicht. Dadurch wird auch die Ausbildung von Siedegeräuschen sicher vermieden.The proposed measures will result in a significant improvement in heat transfer from the pipe to the medium flowing through it. This will also ensure that the formation of boiling noises is avoided.
Durch die Merkmale des Anspruches 2 ergibt sich der Vorteil eines besonders guten Wärmeüberganges. The features of claim 2 result in the advantage of particularly good heat transfer.
Durch die Merkmale des Anspruches 3 ergibt sich der Vorteil, daß sich nur eine begrenzte
Verminderung des freien Querschnittes des Lamellenrohres ergibt und trotzdem eine örtliche
Überhitzung des Rohres in dem einem Brenner zugekehrten Bereich sicher vermieden wird.
Dadurch werden auch Siedegeräusche sicher unterbunden.The features of claim 3 provide the advantage that only a limited
This results in a reduction in the free cross-section of the finned tube and yet local overheating of the tube in the area facing a burner is reliably avoided. This also reliably prevents boiling noises.
Die Erfindung wird nun anhand der Zeichnung näher erläutert. Dabei zeigen:The invention will now be explained in more detail with reference to the drawing.
Fig. 1 schematisch eine Heizeinrichtung mit einem erfindungsgemäßen Wärmetauscher undFig. 1 schematically shows a heating device with a heat exchanger according to the invention and
Fig. 2 eine axonometrische Darstellung ein Rohr mit einem Einsatz.Fig. 2 is an axonometric representation of a tube with an insert.
Gleiche Bezugszeichen bedeuten in beiden Figuren gleiche Einzelheiten.The same reference numerals indicate the same details in both figures.
Bei der Heizeinrichtung ist ein Brenner 1 vorgesehen, der in einem Brennraum 2 angeordnet ist, in dem auch ein Wärmetauscher 3 angeordnet ist.The heating device is provided with a burner 1, which is arranged in a combustion chamber 2, in which a heat exchanger 3 is also arranged.
Dieser Wärmetauscher 3 ist im wesentlichen durch aus Edelstahl hergestellte Lamellenrohre 4 gebildet, die mit Lamellen 5 bestückt sind. Dabei sind die Lamellenrohre 4 mit Einsätzen 6 versehen, die aus Kupfer hergestellt sind.This heat exchanger 3 is essentially made of finned tubes 4 made of stainless steel, which are equipped with fins 5. The finned tubes 4 are provided with inserts 6 made of copper.
Die Einsätze 6 sind durch Profile gebildet, die einen kreisbogenförmigen Querschnitt aufweisen,
wobei Kühlrippen 7 gegen das Innere des Rohres 4 abstehen. Diese Einsätze 6 überdecken
nur einen Teil der Innenwand der Rohre 4, wobei die Einsätze zweckmäßigerweise
jenen Bereich der Lamellenrohre 4 überdecken, der dem Brenner 1 zugekehrt ist.The inserts 6 are formed by profiles that have a circular cross-section, with cooling fins 7 protruding towards the inside of the tube 4. These inserts 6 cover
only a part of the inner wall of the tubes 4, whereby the inserts are expediently
cover that area of the finned tubes 4 which faces the burner 1.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT38598A AT405881B (en) | 1998-03-05 | 1998-03-05 | HEAT EXCHANGER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29904231U1 true DE29904231U1 (en) | 1999-06-24 |
Family
ID=3489199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29904231U Expired - Lifetime DE29904231U1 (en) | 1998-03-05 | 1999-02-25 | Heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| AT (1) | AT405881B (en) |
| DE (1) | DE29904231U1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056651A1 (en) * | 2018-09-19 | 2020-03-26 | 苏州明志科技有限公司 | Aluminum alloy heat exchanger and preparation method therefor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1096147A (en) * | 1976-04-28 | 1981-02-24 | James L. Cunningham | Heat transfer tube and method of making same |
| AT403735B (en) * | 1996-03-11 | 1998-05-25 | Vaillant Gmbh | FLAT HEAT EXCHANGER |
-
1998
- 1998-03-05 AT AT38598A patent/AT405881B/en not_active IP Right Cessation
-
1999
- 1999-02-25 DE DE29904231U patent/DE29904231U1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATA38598A (en) | 1999-04-15 |
| AT405881B (en) | 1999-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19990805 |
|
| R081 | Change of applicant/patentee |
Owner name: VAILLANT GMBH, DE Free format text: FORMER OWNER: JOH. VAILLANT GMBH U. CO., 42859 REMSCHEID, DE Effective date: 20020528 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20020723 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20050308 |
|
| R158 | Lapse of ip right after 8 years |
Effective date: 20070901 |